The Ford F-150 computer is designed to track the speed based on your stock tire height. When you upgrade to larger tires, you see a discrepancy between your actual speed and the readout on your speedometer.

You can finally get an affordable and accurate speedometer calibration with an easy and intuitive setup process! The calibrator device can also easily read and check all diagnostic codes to help you manage “check engine light” and “service needed” messages, and also includes a function that allows you to reset the speedometer to the original stock prior to servicing the vehicle. Includes a 1-Year Warranty.

Ford Speedometer Calibrator Features:

Resets your speedometer so that you get accurate readings for larger tires

Easy Plug and Play connection

Updates the OE ECM Shift Points to accommodate larger tires

Recalibrates the Electronic Stability Control so that it works with larger tires